85804810821446 has 4 divisors (see below), whose sum is σ = 128707216232172. Its totient is φ = 42902405410722.

The previous prime is 85804810821349. The next prime is 85804810821449. The reversal of 85804810821446 is 64412801840858.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85804810821449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21451202705360 + ... + 21451202705363.

It is an arithmetic number, because the mean of its divisors is an integer number (32176804058043).

Almost surely, 2^{85804810821446} is an apocalyptic number.

85804810821446 is a deficient number, since it is larger than the sum of its proper divisors (42902405410726).

85804810821446 is a wasteful number, since it uses less digits than its factorization.

85804810821446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42902405410725.

The product of its (nonzero) digits is 15728640, while the sum is 59.

The spelling of 85804810821446 in words is "eighty-five trillion, eight hundred four billion, eight hundred ten million, eight hundred twenty-one thousand, four hundred forty-six".